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1. at some fancier sledding hills there is a motorized rope loop used to pull sledders back...

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Physics

1.at some fancier sledding hills there is a motorized rope loop usedto pull sledders back to the top of the hill. the hillside isinclided at 25 degrrees and the rope pulls sledders at a constant2.5 m/s. sleds arent quite a frictionless a good skis, so let's saythat thete is a coefficient of kinetic friction of =0.05 betweenthe sled and the snow.

a) how much power must the drive motor provide to pull asingle sledder and sled with a combined mass of 180 kg up the hillunder these conditions

b) if the sled run is 40m long, how much work does the motordo on the sledder and sled during the trip back to the top of thehill?

Answer & Explanation Solved by verified expert
3.8 Ratings (540 Votes)
aGravitational force along the incline Fg mg sinWhere m is the combined mass of the sledder and the sled m    See Answer
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